University Chemistry ›› 2018, Vol. 33 ›› Issue (10): 105-109.doi: 10.3866/PKU.DXHX201802006

• Self Studies • Previous Articles     Next Articles

Frequently Encountered Problems and Analysis of Significant Figures Teaching in Analytical Chemistry

Haiyan LIU*(),Yi ZHAO,Ping HU,Junhong QIAN,Wenqing ZHANG   

  • Received:2018-02-04 Published:2018-11-01
  • Contact: Haiyan LIU E-mail:hyliu@ecust.edu.cn
  • Supported by:
    华东理工大学基础课程教学团队建设项目(YJ0126123);谱学导论上海市重点课程;华东理工大学专业核心课程项目

Abstract:

Analytical chemistry often involves a large amount of experimental data, and the reliability and accuracy of the experimental results are related to whether the original data can be properly recorded and calculated. In this paper, starting from the importance of significant figures, analyzing the frequently encountered problems related to the significant figures in teaching process, and giving some solutions, we try to help students to learn and master the concept of significant figures, rounding off numerical values, rule of operation and data processing.

Key words: Significant figures, Data recording, Rounding, Data processing

MSC2000: 

  • G64